Purely physical are the devices used by science for detecting the physical aspect of Nature. For instance, such devices can detect the physical aspect of man but not the nonphysical or the supernatural aspect of man. True, purely physical devices do record, which form the physical data of science.

There is a marked difference between saying that purely physical devices cannot detect certain elements of Nature and quite another to say that if they cannot be detected by such devices, then they do not exist. Obviously, I ascribe to the former.

For scientific research to be meaningful, one have to say that in the normal course of events purely physical devices detect only aspect of reality that are partially physical. However, we cannot exclude exceptions which can properly termed miraculous. That would both make sense of what science is and makes clear that science cannot deny that which is truly miraculous.

The mind-body problem means that the supernatural in man can mediate between the nonphysical, mind, and the physical body. Note that humans are a unity so this interaction takes place within that unity.

The notion of fields in physics is purely physical concepts. Therefore, if one were within the realm of the purely physical, then there would be no need of nonphysical elements. That is why the data that makes up the subject matter of science can be collected or recorded without the aid of the nonphysical and the supernatural. However, the theories that humans construct from that data are nonphysical, e.g., mental concepts, mathematics, etc.

There is a marked difference between a real electron that is detected and the concept of an electron that is a mental construct in our theories. The former is purely physical while the latter is nonphysical.

Are you including my mental concepts in your conclusion that â€œeverything within the universe is physical?â€